CVE-2020-4925 : What You Need to Know
Learn about CVE-2020-4925, a medium severity vulnerability in IBM's Spectrum Scale 5.0 and 5.1 allowing a non-root user to cause a denial of service. Find mitigation steps and prevention measures here.
A security vulnerability in IBM's Spectrum Scale versions 5.0 and 5.1 allows a non-root user to overflow the mmfsd daemon, causing a denial of service.
Understanding CVE-2020-4925
This CVE involves a vulnerability in IBM's Spectrum Scale software that can be exploited by a non-root user to disrupt service.
What is CVE-2020-4925?
The vulnerability in Spectrum Scale 5.0 and 5.1 enables a non-root user to overwhelm the mmfsd daemon, leading to a denial of service condition.
The Impact of CVE-2020-4925
The vulnerability poses a medium severity risk with a CVSS base score of 6.2, allowing an attacker to disrupt service availability.
Technical Details of CVE-2020-4925
This section provides more technical insights into the CVE.
Vulnerability Description
The flaw in Spectrum Scale versions 5.0 and 5.1 permits a non-root user to flood the mmfsd daemon, hindering its ability to process other requests.
Affected Systems and Versions
- Product: Spectrum Scale
- Vendor: IBM
- Affected Versions: 5.0, 5.1
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Availability Impact: High
- Privileges Required: None
- Exploit Code Maturity: High
Mitigation and Prevention
Steps to address and prevent the CVE.
Immediate Steps to Take
- Apply the official fix provided by IBM.
- Monitor system logs for any unusual activity.
- Restrict non-root user access where possible.
Long-Term Security Practices
- Regularly update Spectrum Scale to the latest version.
- Conduct security training for users to recognize and report suspicious activities.
Patching and Updates
- Stay informed about security bulletins and updates from IBM.